William h



(No Model.)

W. H. LEWS 8a 0. K. ASGI-IER.

STEAM HEATER.

Patented 001;. 7, 1004.

TVITJVESS'ES N PETLRS. Phokormmegmplm. wmmpmn. D. c.

nrrnn @rares artnr trice@ WILLIAM H. LEWIS AND OTTO K. ASGHE 0F SOUTH BEND, IXDTANA.

STEAM-HEATER.

SELPECFICATION Yforming part of Letters Patent No. 306,270, dated October 7, i884.

Application filed May 5, 1884. (No model.)

.'[0 all 'zr/wm, it may concern.-

Bc it known that we, WILLIAM. H. Lnwrs and Or'ro K. Ascnnn, of South Bend, Ain the county of St. Joseph and State of Indiana, have invented certain new and useful Improvements in Steam Heaters; and we do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the let-ters of reference marked thereon, which form part of this specification, in which Figure l is a perspective external view of our improved steam-generator and furnace complete. Fig. 2 is a perspective view of a vertical longitudinal section of the generator and furnace. Fig. 3 is a perspective View showing the telescopic chute of the fuelmag azine.

This invention relates to furnaces or apparatuses and steam generators commonly known as steamheating furnaces,77 which are especially designed for warming build ings, said apparatuses being located in the cellars of buildings, where the vertical space is generally limited.V

r'he nature of our invention consists in a novel construction of a combined furnace and steamgenerator, whereby many serious objections to such apparatuses as hitherto constructed are remedied, as will be fully understood from thefollowing deseriptiomwhen tahen in connection with the annexed drawings. The entire furnace and vthe water and steam spaces are inclosed by a casing which is composed of firc-brick or other suitable substance which is a poor conduct-or of heat, and which will therefore prevent undue radiation of the same.

A designates the combustion-chamber of the furnace, which is provided with a front door, I, the grate, is sustained by bearers l K, and A designates the aslrpit, which is provided with a door, 1], and an inclined hinged draft-door applied to a passage leading into the ash-pit. The eombustioirchamber A is inclosed by a double wall of boileniron, leaving a water-space, O, which is in communication .with the vertical steam-generator R, and

which extends therein, as shown in Fig. 2, and is separated therefrom by a vertical single wall or diaphragm, N. The crown-sheets of the combustion chamber are vertically perforated at a suitable point, and at this point is applied a verti cal telescopic chute composed of two sections, G H, connected by a male and female screw, the lower section of which chute is adjustable toward and from the grate l, for the purpose of graduating or regulating the feed of the fuel, as may be desired, so that in weather when little lire is required the draft need not be kept so tight as would be liable to put out the fire. Thistelescopic chute has removably applied to it a conical fuel-magazine, F, having au inclined top, which is pro vided with covers C C', hinged at the center, as shown in Figs. l and The magazine F is composed of a single wall, not inclosed and not exposed to a high degree of heat; conscquently it prevents the generation of steam and gas from the coal in said magazine.

That portion of the inner erown-sheet of the furnace which extends into the vertical Vportion of the boiler proper is in communication with a depressed iiuechamber, XV, at the upper end of the boiler, by means of a series of vertical flues, a, through which the highlyTA heated products of combustion pass from the combustionchamber A and enter said fluechamber lV. From this chamber NV the produets of combustion descend through lines b, which are connected to the ends of the vertical portion of the boiler, and which communicate with a soot-chamber, l), beneath the vertical boiler, and thence pass through a vertical flue to the common outlet V. lt will thus be seen that the highly-heated products of combustion pass from the rear part of the combustion-chamber up through a series of ilues, through the vertical boiler, into a llue space or tlep1essio1i,V,theuce descend through the vertical boiler again into a chamber beneath it, and thence ascend outside ofthe vern tical boiler-shell to the chimney. Tn thislong course of the products of combustion through the combustiexi-chamber, the flue-space XV, and the chamber l? tothe outlet it is Obvious that a 'large amount of heat will be absorbed by the boiler-water, and that there will be a great economy ol iuel.

The hinged cover lB at the top of the flue-space KVV serves as a deflector for the heated currents, and it also affords IOO ready access to the vertical straight ilues c b a removable fuelmagazine7 substantially as for the purpose of cleaning` them when necessary.

It will be seen by reference to Fig. 2 that above the Water-line r (indicated by dots) We form a steam-space, M, which is between the Walls surrounding thc flue-space YV.

It Will be observed from the above description that we have reduced the height of the boiler, and that we can increase the capacity of either the re-space or steam-generator indefinitely Without increasing the height of said apparatus.

Having described our inventiomwe elaim l. The combinatiomwith a furnace, of a fuelchamber, atelescopic fuel-feeding chute formed of two parts connected by screw-threads7 and described.

2. The combination of a removable fuelmagazine arranged outside of a steam-generator furnace, and provided With inclined covers, a telescopic chute composed of two sec tions connected by a male and a female screw, horizontal steam-boiler7 and a horizontal furnace therefor, substantially as described.

In testimony that We claim the foregoing as our own We affix our signatures in presence of' two Witnesses.

VILLIAM H. LEWIS.

OTTO K. ASCHER. Vitnesses:

Jns. DU SHANn, W iLLis A. BUGBEE. 

